Dump-car attachment.



H. VAN SCOY. DUMP GAR ATTACHMENT. APPLICATION FILED AUG. 24, 1911.

Patented Oct; 7, 1913. 1

WITNESSES.-

to Will iufiis- 1 UNITED STATES PATENT OFFICE;

HOWARD VAN SGOY, OF GHIOAGO, ILLINOIS, ASSIGNOR TO GOODWIN GAE @OMPANY, OF CEIOAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

noun-A3 ATTACHMENT.

Application tiled. August 24,

Specification of Letters Patent.

Patented Oct. 7, 1913,

191 Serial n 645.790.

To, it may concern Be it, known that I, Howm Van Seer, a citizen of the United States, residin at 6425. Peoria street, Chicago, Illinois, ave in- 5, vented certain new and useful Improvements in Dum -Car Attachments, of which the following a specification.

This invention is an attachment for use in connection with dumping-cars of the sort to ha g clined -doo s capable o sw nglng outward end upward, and which allow the material therein contained to slide out y gtja ity- It 1s well known that, in cars of the kmd in refer-red to, the drop doors, which the dumped material causes to swing out at first,

w ll immediately rebound and obstruct the d schargfi by flapping back against such portmn of t e mater al as remains yet to be unz o loaded, thereby making it. lifiicult to unload a car completely without subjecting the at tendent to the trouble of holdin the door- 0 on, or of reopening it severe, times to 0 our the outlet and work ofi the load, with at equent Waste of time an inconvenienc The present invention aims to obviate the r uble hus p enced with the dumpears, and other vehicles, structures, or re ceptacles that are unloaded in a like mendo nor, by providing means whereby the discharg ng valve or door thereof is kept out of the we of the dumped material from the start, It at is tosay remains wide open from the moment it is pushed out, so that no obte Steele hatever is ofiered to an m d a e,

completedlschar e. v

Referring to t e accompanyin drawing, ychlchjorms an nse arable part reef, and in wh ch eorrespon ing numerals are used to to desifnate similar elements throughout the severa VlfiWSl -FIQII'Q 1 is a cross sectional elevat cn of a dumping car of kn e to which-the invention has. been applied, ti: samehevmg doors on both sides, one of o hich is sh ve clo d, and the th pa y Qpeot e 2 i a tragm n a x i r p oduc ng the upper mght-hand side of Fig, 1, but showing the door on that side opened to 7 its f ll ten ig, 3 s a d ta hed rear to view of a portable hook-bar constituting the ppincipal part oi the invention, and shown n side elevation 1 the precedinifigures.

Among other e ements, whic it is unnecessary here; to mention. the car. repreme ud-e the following, vW

pper o equ nt. r c pta e 1, having s des and 3 inclined inwardly and downwardly; sim lerlysinclined dro doors 4 and 5, hmged'SO. as to hang from t e said sid a normall V-shaped bottom composed of t ltable ha, ves 6 and 'Z, disposed in the same planes as said doors respectively, acting as detent retaine herefor to; i ta m n the r cllpsed positions, and coactin therewith n eeping the material wit in the hopper; discharge aprons composed of fixed outer sections, 8., 9, and movable inner se tions l0, 11, adapted to lead the dumped material down either outside or inside the track along which the car runs; and rocking detents 12, 13, operated by shafts 14, 15, an encagin triangular supports 16, 17 of the Villa ,e

7, of t e latter can be dropped or tilted so as to release the door, 4; or 5,'retained thereby, and lie in one continuous incline with th other half of said trough and the closed door on the op .osite side, thus allowing the material to sin? right or left, according to which side door Was released and dropped. The above enue merated parts are common in that type of car, and consequently no claim is made to them herein, save in so far as the combina tion thereof with the novel elements of the invention, about to be described, is concorned.

The means provided for keepingthe drop door wide open as intended is automatic, and in the preferred form of the invention, consists of a portable her 18 having hooks 19, 20, at the ends, that is one book on each end. These books are made to engage, r spectively, the side of the hopper or receptecle 1 directly above the dro door, and the lower edge of the door itsel as it is swung o 1e11, At rst the bar l8 is located so that l 6 pp 00k .9 hereof Will cause it to hang from the hopper in the manner represented on the left-hand side of Fi 1, and each, side of the receptacle may, i desired, be thus supplied with a, bar having such books. The enga ement of the lower-hook 20 with the drop oor is efl'ected by impact of the letter agemst the former, as suggeste in El 2, Where for example the right-hand side nor 5 is shown as being swung open and encounterin the pendent hook of the a ja ent bar- T 'e doo epe the b 1 m t the hook the eo but' he om tune trough, whereby either half, 6 or.

e down and out, either to the attachment to the dump car.

it swings upl past the point of the hook and is caught t ereby, as Fig. 2 indicates, before it could rebound back against the side of the hop er or the material therein that remains to e dumped. The hook thereafter retains the door in its open position, until released, meanwhile keepin the outlet of the hopper free from impe iment and permitting the contents thereof to be emptied continuously at one operation without stop-' page Suflicient weight is imparted to the bar 18 to enable it always to come seasonablyinto the various ositions which it. is designed to occupy, an particularly to prevent the hook 20 thereof from being pushed out too far and remaining out of range when the door rebounds against the impulse received from the dumped material. The weight might be distributed over the entire bar, if desired, by making the bar comparatiyely wide or thick, but in practice it is deemed preferable to make the bar of relatively slender proportions and add thereto a separate or separable weight 21. Such a weight as 21 is conveniently bolted to the bar, on the back thereof, as shown; A central twist 22, in the bar, hel s to'relieve the strain on the fastening olts when the weight is hung in the manner illustrated, and further indicates to the workman how the bar is best applied and its weight located. That is to say, the stress will be partly taken ofi the bolts by the lower end of the weight 21 resting on the twist 22, when in a substantially vertical position as shown; and the location of the weight above the twist may serve as a guide in ap lying the t may be noted here that the attachment is not a fixture on the dump-car, where one could rel on always finding it correctly positione Its connection therewith israther transitory For, although the attachment can remainpermanently on the car, it may be thrown on and o to and from the ground, as well as be transferred from one car to another, all of which is a matter of choice and expedienc in the use of this'invention.

A hinge lin 23 is provided to hold each dro door properly suspended and to assist the bar 18 in coming into effective engagement therewith, when either door is opened. The upper end of the link 23 is pivotally connected to the hopper, as at 24, and its lower end likewise has a pivotal connection 25 with the drop door some distance below the upper edge of the latter. A plurality .of links, thus pivoted or hinged, may be employed for hin 'ng each door, the number thereof depending on the width of the door in each instance. As shown in the drawing, eachlink is bent at an obtuse angle, forming an elbow 26 which is turned outward, and a corresponding bend inward which brings the lower end of the arm, or forearm, under the 1,074.,eea

lower edges are swung in opposite directions, the upper edge inward and downward, and the lower edge outward and upward, the pivot 25 being the common center of oscillation. This 1n a measure divides the weight of the mass to oscillate,'by placing art of it on each side of the pivot 25, and acilitates in a corresponding ratio the swinging of that portion of the door which extends below the pivot, through the are which it is intended to describe. Moreover, owing to the location of the pivot 25 the radius of this are is shorter than it would be normally, were the door hung from the hopper by means of a single pivot or a plam line of hinges as in ordinary constructions. Now, the sharpness of the arcs curvature is inversely'proportional to. the len hIof its radius in any case; Therefore, it is obvious that with the drop-door hinged as herein described, the lower portion thereof below the pivot 25 is swung farther out from the material in the hop er than it would. be otherwise, the result eing that it is better met by'the hook 20, and their engagement is insured.

Having described my invention, what I claim, and desire to secure by Letters Patent of the United States, is;

1. The combination with a rece tacle of the kind described, havin a side oor suspended therefrom by a hinge which allows the door to open outward under pressure of the material discharged from the receptacle, of a holder for said door comprising a portable bar designed to be placed in a substantially vertical position in the ath-of the door and .to be swung out there y, suspending means at the upper end of said bar adapting it to be thrown mto engagement with the receptacle at any desired oint along the' same, engaging means at the ower end of the bar where y it is enabled to catch the door by its lower edge, and a weight on the bar ad usted to offset partially the force of impact of the door thereonand cause the bar to swing back in time for its engaging means to grasp the, said lower edge of door as the lattef starts to return to normal position. Q

2. The combination with a hopper-like receptacle having a drop side door hung therefrom 'by a' hinge holding the door at some distanceggbelow its upper ed so that when it appease by the material 'scharged zs I from the receptacle the door will have its upper and lower parts swinging in opposite directions on a relatively fixed point of oscillation, of a holder for said door including aportable bar designed to be placed in a substantially vertical position in the path of the door pushed out by the discharged material and to receive the impact thereof,

an upper hook on said bar adapting it to be- 10 thrown at any desired point into engagement with the top portion of the receptacle,

a lower hook on the bar arranged to catch the lower edge of the outswung door, and a weight on the bar partly resisting the force of impact thereon from the door and operating to swing back the bar at a greater rate of speed than that of the door on the rebound.

In testimony whereof, I have signed this specification in the presence of two witnesses.

HOWARD VAN SCOY. Witnesses:

P. S. HARMANN, E. S. NELSON. 

